{"description":"Chrome\u306eExperimental WebKit/JavaScript Features - fragmentary Experimental JavaScript Features \u306e\u65b9\u306b Symbol \u304c\u4f7f\u3048\u308b\u3068\u66f8\u304b\u308c\u3066\u3044\u305f\u306e\u3067\u65e9\u901f\u3002Symbol \u3063\u3066\u306e\u306f\u306a\u3093\u3066\u8a00\u3046\u304b\u3001\u56fa\u6709\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30ad\u30fc\u306b\u306a\u308c\u308b\u3082\u306e\uff1f\u3063\u3066\u3044\u3046\u8aac\u660e\u3067\u826f\u3044\u306e\u304b\u306a\u3002 var s = new Symbol(); var obj = {}; obj[s] = \"OK\"; obj[s] // \"OK\"; obj[s]\u306e s \u306f\u6587\u5b57\u5217\u5316\u3055\u308c\u305a\u306b\u3001Symbol\u305d\u306e\u3082\u306e\u3068\u3057\u3066\u52d5\u304f\u3002\u6587\u5b57\u5217\u30ad\u30fc\u3068\u3057\u3066\u306f\u5b58\u5728\u3057\u306a\u3044\u305f\u3081s \u3092\u4f7f\u308f\u305a\u306b\u5f97\u308b\u3053\u2026","url":"https://teramako.hatenadiary.org/entry/20130317/p3","type":"rich","blog_title":"hogehoge @teramako","author_url":"https://blog.hatena.ne.jp/teramako/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fteramako.hatenadiary.org%2Fentry%2F20130317%2Fp3\" title=\"Symbol \u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u5024\u3092\u4f5c\u308b - hogehoge @teramako\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://teramako.hatenadiary.org/","provider_url":"https://hatena.blog","version":"1.0","categories":["GoogleChrome","JavaScript"],"image_url":null,"title":"Symbol \u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u5024\u3092\u4f5c\u308b","width":"100%","published":"2013-03-17 00:00:00","height":"190","author_name":"teramako","provider_name":"Hatena Blog"}